Results 271 to 280 of about 1,849,278 (326)

Gradients of plasticity

2015
Despite their partially distinctive neural substrates, in typical adults language and emotion function together as well-integrated communicative systems. Both patient and neuroimaging research has furthered our knowledge of the brain organization underlying language and emotion, yet we know little about how this organization develops.
Lara Polse, Philip Lai, Judy Reilly
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On scale invariance in anisotropic plasticity, gradient plasticity and gradient elasticity

International Journal of Engineering Science, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Mechanism-Based Strain Gradient Crystal Plasticity

MRS Proceedings, 2004
AbstractTo model size dependent plastic deformation at micron and submicron length scales the theory of mechanism-based strain gradient plasticity (MSG) was developed. The MSG approach incorporates the concept of geometrically necessary dislocations into continuum plastic constitutive laws via Taylor hardening relation. This concept is extended here to
Chung-Souk Han, Huajian Gao, Yonggang Huang, William D. Nix   +3 more
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On the role of higher-order conditions in distortion gradient plasticity

Journal of the mechanics and physics of solids, 2018
We focus on Gurtin’s gradient plasticity (GP) theory adopting Nye’s tensor as primal higher-order (HO) kinematic variable, contributing to the free energy.
A. Panteghini, L. Bardella
semanticscholar   +1 more source

Stability of strain-gradient plastic materials

Journal of the Mechanics and Physics of Solids, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dal Corso, Francesco, J. R. Willis
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On boundary conditions and plastic strain-gradient discontinuity in lower-order gradient plasticity

Journal of the Mechanics and Physics of Solids, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Acharya, Amit, Tang, Huang, Saigal, Sunil, Bassani, John L.   +3 more
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Equivalent plastic strain gradient crystal plasticity – Enhanced power law subroutine

GAMM-Mitteilungen, 2013
AbstractA gradient crystal plasticity theory is presented including a defect energy based on the gradient of an equivalent plastic strain measure. Preserving the single crystal slip kinematics, the gradient hardening contribution models dislocation long range interactions adding a back‐stress term to the flow rule, similar to other gradient crystal ...
Wulfinghoff, Stephan, Böhlke, Thomas
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Gradient Plasticity Formulations

2017
A theoretical framework that has potential to cover a large range of gradient plasticity effects in isotropic materials is presented. Four classes of strain gradient plasticity theories are considered, aiming to span a wide domain of gradient plasticity formulations.
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Strain gradients in plasticity

Acta Mechanica, 1977
An analytical model of a plastically deforming solid is assumed to be a material where the second spatial gradients of strain are included in the constitutive equations. These constitutive equations are combined, in a one dimensional shearing problem, with the second law of thermodynamics and condition of thermodynamic stability. The results are that a
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Energetic approach to gradient plasticity

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2010
AbstractWe formulate a problem of the evolution of elasto‐plastic materials subjected to external loads in the framework of large deformations and multiplicative plasticity. Our model includes gradients of the plastic strain and of hardening variables. We prove the existence of the so‐called energetic solution.
Kratochvíl, Jan, Kružík, Martin, Sedláček, Radan   +2 more
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